Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
773208 | Fluid Dynamics Research | 2006 | 16 Pages |
Abstract
A mass-weighted-averaging theory is formulated of density-variable inhomogeneous turbulence. There the velocity and the concentration of matters are resolved into the mass-weighted means and the fluctuations around them. The essence of the formulation lies in the introduction of mass-weighted fluctuations. With those new variables, a statistical theory of inhomogeneous incompressible turbulence can be extended to the variable-density counterpart in a straightforward manner. One of the unexpected findings by this theory is the striking similarity between the countergradient diffusion in a turbulent combustion and the heat-transport suppression in high-mode confinements of tokamak's thermonuclear fusion.
Keywords
Related Topics
Physical Sciences and Engineering
Engineering
Mechanical Engineering
Authors
Akira Yoshizawa,